Machine for applying cement to fabrics.



No. 637,674. Patented m 2|, I899.

w. SELLERS & .1, s. BANCROFT. MACHINE FOR APPLYING CEMENT TU FABRICS.

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. Patented Nov. 2|, I899. W. SELLERS 8|. J. S. BANCBOFT.

MACHINE FUR APPLYING CEMENT T0 FABRICS.

(Applicationflled June 25, 1898.) (No Model.)

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' NITED STATES PATENT OFFICE.

WILLIAM SELLERS AND JOHN SELLERS BANCROFT, OF PHILADELPHIA,PENNSYLVANIA, ASSIGNORS TO THE WILLIAM SELLERS & COMPANY, INCORPORATED,OF SAME PLACE.

MACHINE FOR APPLYING CEMENT TO FABRICS.

SPECIFICATION forming part of Letters Patent No. 637,674, dated November21,1899. Application filed J'une 25, 1398. Serial No. 684,515. onmodel.)

T0 at whom it may concern.-

Be it known that We,WILLIAM SELLERS and JOHN SELLERS BANOROFT, of thecity and county of Philadelphia, in the State of Pennsylvania, haveinvented certain new and useful Improvements in Machines for ApplyingCement to Fabrics, of which improvements the following is aspecification.

The machine to which our improvements are particularly applicable wasdesigned to apply cement upon the edges of the leather uppers for shoesand the linings therefor preparatory to lasting the same, in whichoperation the upper is attached to the insole of the shoe by means ofthe cemented edges prepared by the machine we have invented.

It is important for successful lasting that the edges of the parts to beunited should be coated with a band of cement of uniform thickness andwidth; and it is one object of our invention to effect these results.

As the edges of the material to be cemented are curved in a variety offorms, it is a further object of our invention to arrange the cementingdevices so that the material to be coated can be propelled thereby,conveniently guided while passing therethrough, and its progressarrested and retarded at will.

It is a further object to arrange the cementing devices so that thedelivery of cement will be arrested when the movement of the cementingdevices is stopped.

It is a further object to deliver the cementing material upon the uppersurface of the fabric to be coated proportionately to the rate oftravel; and it is a further object to separate the cementing devices sothat all parts of the apparatus may be conveniently and thoroughlycleansed.

These objects are obtained by the mechanism illustrated in theaccompanying drawings, which form part of this specification, in

The machine is composed of a stand A, Figs. 1 and 2, provided with aplatform B at its upper end, upon which the cement-reservoir O ismounted and fastened in place by the beveled guide m, Figs. 2, 3, and 4,and by thumb-screw clamp 12, Fig. 2, along the side of the reservoir.The front end of this reservoir is provided with a beveled guide m andscrew-clamp n", by which the conduit D is fastened to the reservoir andpreferably to extend below it. These fastenings facilitate theseparation and removal of the reservoir and conduit at the end of thedays work, when the cement must be emptied from the reservoir and theconduit to prevent wasteful evaporation.

The cement is applied to the fabric by means of a roller E, mounted on ashort shaft 0, and preferably so that the roller may be submerged incement. The shaft 0' is in the conduit D, supported by the bushing F, inwhich the shaft is rotatable. The bushing F is of larger diameter thanthe roller E, so that the roller and its shaft 0 may be entered into andremoved from the conduit D While supported by the bushing F. The shaft 0projects beyond the outer end of the bushing F, where it is flattened,as shown, to form the slip-coupling 0, Fig. 5, with the end of the shaftG,supported in the platform B, whereby the cement-reservoir, conduit,and cementing-roller may be disconnected from the driving-shaft G andremoved from the platform B by slackening the thumb-screw clamps n andsliding the reservoir longitudinally. On the outer end of this shaft issecured the friction-wheel H, Fig. 5, on the hub of which is agear-wheel I of a diameter equal to that of the cementingroller E. Thisroller is so mounted in the conduit D that a portion of it cuts throughan opening in one side of the conduit, which opening fits thecircumference and sides of the roller, as in Fig. 7, so as to preventthe escape of fluid cement when the roller is at rest, notwithstandingthe circumference of the roller has depressions or serra tions that willbe filled with cement when the conduit is filled with it. Thesedepressions or serrations may be of any shape or depth, providing theydo not form a connection from ment when the roller is at rest.

one to another through the side of theconduit, which would permit thepassage of ce- When the roller is rotating, these depressions becomebuckets, which carry a quantity of cement through the side of. theconduit, determined by the capacity of thebuckets. The material to 'becoated with cement is pressed against the cementing-roller by apressure-roller, preferably below the cementing-roller, as in Figs. 1,2,4, and 5, operated by the treadle J, which is pivoted at p to thestand A, its downward movement limited by the stop h, and it operatesthe crank-arm K through the rod q. The upper end of the rod (1 isscrewed into a double-ended nut q, into the opposite end of which isscrewed the rod 7", provided with a fixed collar r and a nut and washers on its upperend. Between the collar 0" and the doubleended nut q asleeve 1" is provided, which slides freely on therod r' andhas collarsat each end, between which the circular end of the crank-arm K playsfreely. Between this sleeve 1" and .the fixed collar 0" is a spiralspring .9, which sur-V rounds the shaft 7' and through which downwardpressure from the treadle J upon the sleeve r must pass, which pressurewill be limited by the stiffness of the spring .9. The rod r issupported laterally by a projection L from the platform B, through whichit plays freely vertically. Above this projectionL and resting upon itis a spiral spring 5, which surrounds the rod rand is of a length tocounterbalance the treadle J throughout its movement, the weight beingtransmitted from the rod r to the spring 3 by thenut and washer s. Thecrank-arm K is preferably cast upon the end of the shaft M,,which issupported from the platform B by the brackets N andN, Figs. 2, 3, and 6;Between the arm K and the bracket N a cam M is preferably cast with theshaft M, and depending from the bracket N is a projection P, Figs. 2 and6, provided with a stud 25, upon which is mounted the bell-crank leverP, the short arm of which is operated by the cam M as the shaft M isvibrated by the movement of the rod q, connected tothe treadle J and thecrank-arm K. The long arm of the bell-crank leverP operates asleeve a,which slides freely upon a stud. a, secured in a projection u from theunder side of the vibrating armQ, which car ries the shaft R R of thepressure-roller E.

Between the sleeve u and the projection u a spiral spring 1: is mountedupon the stud to, which determines the pressure which can be applied bythe bell-crank lever P upon the vibrating arm Q. The lower end of thestud u is provided with lock-nuts to regulate the distance between theend of the long arm of the bell-crank lever P and-the vibrating arm Q.The pressure-roller E is carried upon the end of the shaft R R under thecementingroller E, and upon the other end of this shaft is mounted agear-wheel w. This gear-wheel wheel I on the hub of the friction-wheelH.

The end of the vibrating arm Q next the gear- Wheels is supported on thepivots m and m, the

axes of which are in a plane tangent to the pitch-lines of the twowheels and in a plane at right angles thereto, which cuts theteeth ofthe wheels midway of their width, whereby the vertical vibration of thearm Q will cause the least disturbance to the action of the gearwheels.

To apply power for the rotation of the comenting and the pressurerollers, a stud S is inserted in the end of the shaft M, which stud iseccentric to the axis of the shaft M. Upon this studis mounted adriving-pulley S, Figs. 5 and 6, the hub of which is a friction-wheel T,grooved to fit over the friction-wheel H, so that when the rodq is drawndown, to force the pressureroller against the cementing roller thecrank-arm K will turn the shaft M and force the friction-wheel T againstthe friction-wheel H, which in turn will impart motion to the cementingand the pressure rollers. The drawings represent the short arm ofbell-crank lever P moved from the shaft M by the cam M, upon which thisshort arm rests, in which position the pressureroller is forced againstthe cementing-roller and the friction-wheell against the frictionwheelH, so that if the driving-pulley S is then rotated the rollers E and, Ewill also revolve. If the treadle J is raised by the spring 8, the arm Kwill rise and the shaft M will be rotated so as to draw thefriction-wheel T away from the friction-wheel H. The wheel H and thecementing-roller will then cease to rotate, and at the same time the camM will turn from under the short arm of the bellcrank lever'P.Thepressure-roller E being then unsupported will dr away from thecementing-roller E and relea any fabric compressed between them andalsopermit the conduit to pass over the pressure-roller when the,cementreservoir is removed, as hereinbefore described. The cam M raisesthe short arm of the bell-crank lever P a definite amount and produces adefinite pressure between the two rollers. Further rotation of the cam Mwill not increase this pressure, but it will increase the pressurebetween the friction-wheel T and the friction-wheel H, which pressure islimited by the stifiness of the spring 8. The time for the verticalmovement of the pressure-rolleris determined by the rotative movement ofthe shaft M and the position thereon of the cam M relatively to theshort arm of the bell-crank lever P. The total rotative movement of theshaft M is determined by the amount of rotative movement required tomove the short arm of bell-crank lever P"from the shaft M by the cam Mplus the amount required to bring the friction-wheels T and H intocontact with sufficient pressure to drive H. The two movements may besimultaneous, or either one may precede the other as the character ofthe work may render desirable.

Having thus described our invention, what we desire to secure by LettersPatent is- 1. A rotatable cementing-roller with a retatablepresser-roller parallel thereto, one roller movable toward and from theother, means for thus moving said movable roller and means whereby whenthe movable roller is moved toward the other roller, both rollers areconnected to the driving-shaft and rotated, and whereby when the movableroller is moved away from the other roller the rotation of thecementing-roller is stopped.

2. A rotatable cementingroller pivoted Within a conduit from acement-reservoir, the periphery of the roller extending outside theconduit through an opening which the roller fills and in which it canrotate freely, a rotatable pressure-roller below the cementingroller,and means for pressing and for relieving the pressure upon the materialto be coated as it passes between the rollers.

3. A cementing-roller and apressure-roller geared together, afriction-pulley secured to one of the rollers, a friction-pulleysecuredto the driving-pulley which rotates freely upon an eccentric on arotatable shaft, and means for imparting a reciprocating rotativemovement to said shaft, which engages and disengages thefriction-pulleys with and from each other.

4. A cementing-roller and a pressure-roller geared together, afriction-pulley secured to one of therollers, a friction-pulley securedto the driving-pulley which rotates freely upon an eccentric on arotatable shaft, an arm on said shaft, a treadle with limited movementin one direction,an elastic connection between the arm and the treadle,which determines thepressure of one friction-pulley against the other.

5. Ashaft havingrot-ative movement,means for producing such movement, acam on said shaft, a pressure-roller, and an elastic connection betweenthe cam and the roller which determines the pressure upon the roller.

6. A frictional driving gear, a pressureroller and a shaft havinga.rotatative movement, with means for transmitting by such shaft, anelastic and limitable pressure to the frictional driving-gear, and tothe pressureroller independently of each other.

W'M. SELLERS. J. SELLERS BANCROFT.

Witnesses:

JOHN L. PHILLIPS, E. R. HARPER.

